Remove crusts from pouches; unroll on work surface. Roll each crust to 12-inch round. With 3-inch round cookie cutter, cut 17 rounds from each crust. Spoon about 2 teaspoons beef mixture over half of each round to within 1/4 inch of edge. Brush edges with water. Fold dough over filling; press edges firmly with fork to seal. On ungreased cookie sheet, shape empanadas to curve and look like crescent moons. Brush with beaten egg.